NTSB investigations, AK
591 cases where the sequence of events included Collision with terr/obj (non-CFIT).
Cases per year
| 2008 | 48 |
|---|---|
| 2009 | 32 |
| 2010 | 33 |
| 2011 | 52 |
| 2012 | 62 |
| 2013 | 51 |
| 2014 | 54 |
| 2015 | 34 |
| 2016 | 44 |
| 2017 | 36 |
| 2018 | 41 |
| 2019 | 44 |
| 2020 | 16 |
| 2021 | 5 |
| 2022 | 7 |
| 2023 | 16 |
| 2024 | 5 |
| 2025 | 9 |
| 2026 | 2 |
Where
Open the mapLatest cases
Query with SQL
duckdb -csv -c "SELECT c.\"ntsbNumber\", c.\"eventDate\", c.\"eventType\", c.\"eventCity\", c.\"eventStateOrRegion\", a.n_number, a.\"aircraftMake\", a.\"aircraftModel\", c.\"highestInjuryLevel\", c.\"totalFatal\", c.\"completionStatus\", c.report_url
FROM 'https://openairdocs.org/data/latest/ntsb_case_detail.parquet' c LEFT JOIN 'https://openairdocs.org/data/latest/ntsb_aircrafts.parquet' a ON a.case_mkey = c.\"mKey\" AND a.position = 1
WHERE c.\"eventStateOrRegion\" = 'AK' AND c.\"eventCountry\" = 'USA'
AND c.\"mKey\" IN (SELECT s.case_mkey FROM 'https://openairdocs.org/data/latest/ntsb_events.parquet' s WHERE s.\"tier2Number\" = '470' AND s.case_mkey IN (SELECT case_mkey FROM 'https://openairdocs.org/data/latest/ntsb_events.parquet' WHERE \"isDefiningEvent\"))
ORDER BY c.\"eventDate\" DESC, c.\"ntsbNumber\" DESC"Prints the whole list as CSV. It reads the release’s Parquet files over HTTPS, so there’s nothing to download first. Install DuckDB to run it.
SELECT c."ntsbNumber", c."eventDate", c."eventType", c."eventCity", c."eventStateOrRegion", a.n_number, a."aircraftMake", a."aircraftModel", c."highestInjuryLevel", c."totalFatal", c."completionStatus", c.report_url FROM 'https://openairdocs.org/data/latest/ntsb_case_detail.parquet' c LEFT JOIN 'https://openairdocs.org/data/latest/ntsb_aircrafts.parquet' a ON a.case_mkey = c."mKey" AND a.position = 1 WHERE c."eventStateOrRegion" = 'AK' AND c."eventCountry" = 'USA' AND c."mKey" IN (SELECT s.case_mkey FROM 'https://openairdocs.org/data/latest/ntsb_events.parquet' s WHERE s."tier2Number" = '470' AND s.case_mkey IN (SELECT case_mkey FROM 'https://openairdocs.org/data/latest/ntsb_events.parquet' WHERE "isDefiningEvent")) ORDER BY c."eventDate" DESC, c."ntsbNumber" DESC
Run it at the DuckDB prompt, or in any tool that reads Parquet over HTTPS. More ways to query the release are on Use the data.
NTSB ANC26FA091Accident · 4 fatalClass 3 · FieldPreliminary reportPiper PA-24-260 · Seldovia, AKOn August 26, 2026 about 1317 Alaska daylight time, a Piper PA-24-260 airplane, N9485P, was substantially damaged when it was involved in an accident near Seldovia, Alaska. The pilot and three passengers were fatally injured. The airplane was operated as a…NTSB ANC26LA010Accident · No injuriesClass 4 · LimitedFinal reportBeech 65-A90-1 · Anchorage, AKThe pilot’s failure to attain proper flare during landing resulting in a hard landing short of the runway threshold. Contributing to the accident were gusting wind conditions.NTSB ANC26LA005Accident · No injuriesClass 4 · LimitedFinal reportPiper PA-31-350 · Eek, AKThe pilot’s loss of directional control when the airplane encountered snow and ice on the runway while landing at night in gusting crosswind conditions.NTSB ANC26LA001Accident · No injuriesClass 3 · LimitedPreliminary reportCessna 172N · Petersburg, AKOn October 7, 2025, at 1456 Alaska daylight time, a Cessna 172 airplane, N80628, was substantially damaged when it was involved in an accident near Petersburg, Alaska. The student pilot and flight instructor were not injured. The airplane was operated as a…NTSB ANC25LA121Accident · No injuriesClass 4 · LimitedFinal reportMaule M-4-210C · Lime Village, AKA collision with terrain during takeoff.NTSB ANC25LA106Accident · No injuriesClass 4 · LimitedFinal reportBrian Turner Northern Explorer · Delta Junction, AKThe pilot’s failure to maintain obstacle clearance during landing, which resulted in an impact with trees.NTSB ANC25LA082Accident · No injuriesClass 4 · LimitedFinal reportCessna U206F · Yakutat, AKThe pilot’s failure to maintain clearance during approach in gusting wind conditions to a remote airstrip, resulting in a collision with brush.NTSB ANC25LA066Accident · No injuriesClass 4 · LimitedFinal reportPiper PA-18-135 · Chenega, AKThe pilot’s failure to maintain directional control during landing in gusting and variable wind conditions.NTSB ANC25LA058Accident · No injuriesClass 4 · LimitedFinal reportStinson 108-8 · Alexander Creek, AKThe pilot’s failure to maintain airplane control during final approach. Contributing to the accident was the airplane’s encounter with a downdraft that led to a rapid loss of altitude.NTSB ANC25LA036Accident · Minor injuriesClass 4 · LimitedFinal reportStinson 108 · North Pole, AKThe pilot's failure to maintain obstacle clearance which resulted in an in-flight collision with a tree. Contributing to the accident was his impairment from the effects of alcohol consumption.NTSB ANC25MA018Accident · 10 fatalClass 1 · MajorFinal reportTextron 208B · Nome, AKThe National Transportation Safety Board determines that the probable cause of this accident was the pilot’s inadequate airspeed management due to workload and degraded situation awareness and his improper inputs leading up to and during the aerodynamic…NTSB ANC24LA103Accident · No injuriesClass 4 · LimitedFinal reportCessna 170 · McKinley Village, AKThe pilot’s late decision to go-around, failure to maintain proper airspeed, and his exceedance of the airplane’s critical angle of attack which resulted in an aerodynamic stall at too low of an altitude to recover.NTSB ANC24LA098Accident · No injuriesClass 4 · LimitedFinal reportPiper PA-18-150 · Fairbanks, AKThe pilot’s failure to maintain a rate of climb sufficient to clear obstacles during takeoff, resulting in a collision with obstacles and a subsequent aerodynamic stall.NTSB ANC24LA090Accident · No injuriesClass 4 · LimitedFinal reportPiper PA-18A 150 · Denali, AKFailure to maintain clearance from terrain due to the airplane’s encounter with windshear during takeoff.NTSB ANC24LA086Accident · Serious injuriesClass 4 · LimitedFinal reportCessna 150H · Tok, AKThe airplane’s encounter with gusting winds resulting in a loss of altitude with performance insufficient to outclimb terrain.NTSB ANC24LA014Accident · No injuriesClass 4 · LimitedFinal reportBenjamin Pratt Bearhawk Patrol · Galena, AKA loss of engine power as a result of carburetor ice. Contributing to the outcome was the pilot’s failure to effectively use carburetor heat in conditions conducive to the formation of carburetor ice.NTSB ANC23LA086Accident · No injuriesClass 4 · LimitedFinal reportCessna 182K · Trimble River Valley, AKThe pilot’s selection of unsuitable terrain for landing, which resulted in the left main landing gear (MLG) tire impacting a rock, resulting in the separation of the MLG wheel, and the subsequent loss of directional control.NTSB ANC23LA082Accident · No injuriesClass 4 · LimitedFinal reportHelio H-295 · Fairbanks, AKThe pilot’s encounter with windshear during initial climb out, which resulted in a loss of control.NTSB ANC23LA083Accident · No injuriesClass 4 · LimitedFinal reportPiper PA-18-150 · McGrath, AKThe pilot’s failure to maintain directional control during after encountering a wind gust during landing that resulted in an impact with terrain.NTSB ANC23FA074Accident · 1 fatalClass 2 · FieldFinal reportPiper PA-18-150 · St. Mary's, AKThe pilot’s decision to operate the airplane above its maximum certificated gross weight, and his installation of an unapproved external load that degraded takeoff performance and flight characteristics resulting in a loss of airplane control during takeoff…NTSB ANC23LA081Accident · Serious injuriesClass 4 · LimitedFinal reportPiper/Gerbi Charles R PA 18-150 · Juneau, AKThe student pilot’s failure to maintain altitude after the airplane encountered a downdraft while maneuvering over an area of hilly terrain.NTSB ANC23LA071Accident · Minor injuriesClass 3 · LimitedFinal reportBell Helicopter Textron Canada 206L-4 · King Salmon, AKThe failure of both pilots to see and avoid while en route, which resulted in a midair collision.NTSB ANC23LA069Accident · No injuriesClass 4 · LimitedFinal reportBellanca 8GCBC · Cordova, AKThe pilot’s exceedance of the airplane’s critical angle of attack during landing, which resulted in an aerodynamic stall and loss of airplane control.NTSB ANC23LA062Accident · No injuriesClass 4 · LimitedFinal reportCessna 180J · Chaka Creek, AKA partial loss of engine power as a result of carburetor ice. Contributing to the outcome was the pilot’s failure to effectively use carburetor heat in conditions conducive to the formation of carburetor ice.NTSB ANC23LA053Accident · No injuriesClass 3 · LimitedFinal reportAeronca 7DC · Ninilchik, AKA total loss of engine power due to a shift of a crankshaft main bearing, which resulted in a lack of lubrication and subsequent overheating and failure of the engine crankshaft.NTSB ANC23LA051Accident · No injuriesClass 3 · LimitedFinal reportStinson 108 · Ninilchik, AKA partial loss of engine power due to failure of the No. 1 cylinder intake valve head.NTSB ANC23LA050Accident · No injuriesClass 4 · LimitedFinal reportAviat A-1B · Matanuska Glacier, AKThe airplane’s encounter with downdrafts resulting in decreased performance insufficient to outclimb rising terrain.NTSB ANC23LA046Accident · No injuriesClass 4 · LimitedFinal reportPiper PA-22 · Talkeetna, AKThe pilot’s encounter with a downdraft while maneuvering low-level, which resulted in a collision with terrain.NTSB ANC23LA049Accident · No injuriesClass 4 · LimitedFinal reportPiper PA-18 · Beluga, AKThe pilot's selection of an unsuitable takeoff site, resulting in a collision with brush-covered terrain.NTSB ANC23LA048Accident · No injuriesClass 4 · LimitedFinal reportMaule M-4-210C · Prospect Creek, AKThe pilot’s exceedance of the airplane’s critical angle of attack on climbout, which resulted in a loss of control and impact with trees.NTSB ANC23LA022Accident · No injuriesClass 4 · LimitedFinal reportCessna U206F · Chugiak, AKThe pilot’s failure to maintain directional control during takeoff in flat light conditions which resulted in a loss of control and impact with a snow berm.NTSB ANC23LA018Accident · Minor injuriesClass 4 · LimitedFinal reportPiper PA-18-180 · Glennallen, AKThe pilot’s failure to maintain airspeed during a drag maneuver, which resulted in an overrun and subsequent impact with terrain.NTSB ANC23LA005Accident · No injuriesClass 3 · LimitedFinal reportPiper PA-22-160 · Kenai, AKImproper installation of the crankshaft drive gear by maintenance personnel, who failed to install all required hardware, resulting in an in-flight engine failure.NTSB ANC22FA069Accident · 1 fatalClass 3 · FieldFinal reportStory Charles Brad TT FOX · Wasilla, AKThe pilot’s inability to maintain control of the airplane for reasons that could not be determined.NTSB CEN22LA380Accident · No injuriesClass 4 · LimitedFinal reportCessna 172 · McCarthy, AKThe pilot’s failure to maintain control of the airplane during takeoff in turbulent weather conditions.NTSB ANC22LA060Accident · No injuriesClass 4 · LimitedFinal reportTaylorcraft F21 · Kenai, AKThe pilot’s failure to maintain adequate distance from a tree while landing.NTSB ANC22LA029Accident · No injuriesClass 4 · LimitedFinal reportPiper PA-18-150 · Beluga, AKThe pilot’s excessive touchdown speed, which resulted in a long landing and impact with terrain.NTSB ANC22LA022Accident · Serious injuriesClass 4 · LimitedFinal reportCessna U206F · Newhalen, AKThe pilot’s decision to continue visual flight into an area of instrument meteorological conditions, which resulted in the pilot experiencing a loss of visual reference and subsequent controlled flight into terrain.NTSB ANC22LA016Accident · No injuriesClass 4 · LimitedFinal reportPiper PA-18-150 · Skwenta, AKThe pilot’s failure to maintain adequate clearance from a tree while landing.NTSB ANC21LA096Accident · Minor injuriesClass 3 · LimitedFinal reportPiper PA-14 · Chickaloon, AKA total loss of engine power during takeoff for reasons that could not be determined based on the available information.NTSB ANC21LA062Accident · No injuriesClass 4 · LimitedFinal reportDehavilland DHC-2 MK 1 · King Salmon, AKThe pilot’s exceedance of the floatplane’s critical angle of attack, which resulted in an aerodynamic stall and subsequent loss of control.NTSB ANC21LA057Accident · No injuriesClass 4 · LimitedFinal reportDehavilland DHC-2-L-20 · Coffman Cove, AKThe pilot’s impact with a buoy on takeoff which resulted in a nose-over.NTSB ANC21FA028Accident · Minor injuriesClass 3 · FieldFinal reportPiper PA-18A · Anchorage, AKA total loss of engine power for reasons that could not be determined based on the available evidence.NTSB WPR21FA143Accident · 5 fatalClass 3 · FieldFinal reportAirbus Helicopters AS350-B3 · Palmer, AKThe pilot’s failure to adequately respond to an encounter with whiteout conditions, which resulted in the helicopter’s collision with terrain. Contributing to the accident was the (1) operator’s inadequate pilot training program and pilot competency checks,…NTSB ANC20LA093Accident · Minor injuriesClass 3 · LimitedFinal reportPiper PA22 · Homer, AKThe total loss of engine power during the initial climb due to fuel contamination. Contributing to the accident was the corrosion of the fuel tank filler necks, which resulted in water intrusion into the fuel tanks.NTSB ANC20CA091Accident · No injuriesClass 4 · Data collectionFinal reportCessna A185 · Lime Village, AKThe pilot’s loss of control during the landing flare, which resulted in an impact with trees.NTSB ANC20LA085Accident · 2 fatalClass 3 · LimitedFinal reportCessna A185 · Fairbanks, AKThe PA-18 pilot’s failure to see and avoid the Cessna 185 as it was landing. Contributing to the accident was the PA-18 pilot’s failure to hear the traffic advisory provided by the air traffic control tower.NTSB ANC20LA083Accident · Minor injuriesClass 3 · LimitedFinal reportEurocopter AS350 · Ninilchik, AKA loss of engine power for an undetermined reason.NTSB WPR20CA232Accident · No injuriesClass 4 · Data collectionFinal reportCessna U206 · Nenana, AKThe pilot's failure to maintain directional control during a soft field takeoff on a dirt airstrip, which resulted in an impact with a vehicle.NTSB ANC20LA050Accident · Serious injuriesClass 3 · LimitedFinal reportRockwell 500 · Aniak, AKA loss of engine power due to the use of improper fuel. Contributing to the accident was the failure of the pilot and ground personnel to ensure that the airplane was serviced with the proper fuel.